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Texas Instruments AM5746ABZX
- Part No.:
- AM5746ABZX
- Manufacturer:
- Texas Instruments
- Category:
- Microprocessors
- Package:
- 760-LFBGA, FCBGA
- Datasheet:
-
AM5746ABZX.pdf
- Description:
- IC MPU SITARA 1.5GHZ 760FCBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,793
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Product details
Overview
AM5746ABZX from Texas Instruments is a high-performance Sitara™ Arm® applications processor featuring dual Cortex®-A15 CPUs, two C66x DSP cores, 2.5MB on-chip L3 RAM, dual DDR3/DDR3L EMIFs supporting up to DDR3-1333, and integrated PRU-ICSS for industrial communication. It targets HMI, automation, and analytics systems requiring heterogeneous compute, real-time I/O, and cryptographic acceleration.
For engineers reviewing the AM5746ABZX datasheet, AM5746ABZX pinout, AM5746ABZX application, or AM5746ABZX equivalent, key selection considerations include its lack of HDMI, EVE, IVA-HD, SGX544 GPU, and BB2D hardware acceleration-distinguishing it from AM5748/AM5749-and its support for dual 760-pin FCBGA (ABZ) package with 23 mm × 23 mm footprint, 247 GPIOs, and MCAN/DCAN interfaces.
Technical Context
The AM5746ABZX implements a heterogeneous architecture with dual Cortex-A15 cores for general-purpose OS execution and two C66x VLIW DSPs for deterministic signal processing, coordinated via shared OCMC_RAM and EDMA. Its memory subsystem includes two independent DDR3/DDR3L EMIFs (EMIF1 with ECC, EMIF2 without), enabling interleaved 4GB address space access under LPAE.
Real-time capability is delivered through two dual-core Cortex-M4 coprocessors (IPU1/IPU2), two PRU-ICSS subsystems for protocol offload, and dedicated accelerators including VPE for video scaling/compositing and cryptographic engines supporting AES-128/192/256, SHA2-224/256/384/512, and TRNG-all available in all device variants including AM5746ABZX.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Cores | Dual Arm Cortex-A15 @ up to 1.5 GHz; enables Linux/RTOS execution with Neon SIMD for media and control tasks. |
| DSP Cores | Two TI C66x VLIW floating-point DSPs; supports object-code compatibility with C64x+/C67x and 32× 16-bit multiplies/cycle. |
| On-Chip RAM | 2.5MB OCMC_RAM with ECC; provides low-latency, deterministic memory for critical firmware and real-time buffers. |
| External Memory | Dual DDR3/DDR3L EMIFs; EMIF1 supports up to 2GB with ECC, EMIF2 supports up to 2GB without ECC; DDR3-1333 max rate. |
| Video Acceleration | Video Processing Engine (VPE); handles scaling, deinterlacing, and color-space conversion for up to 1080p60 video streams. |
| Cryptography | Hardware AES-128/192/256, SHA2-224/256/384/512, MD5, SHA1, 3DES, and TRNG; accelerates secure boot and data encryption without CPU load. |
| Industrial I/O | 2× PRU-ICSS, 2× DCAN, 1× MCAN with FD support, 10× UART, 4× McSPI, 5× I2C, 4× MMC/SD, PCIe Gen2 ×2 lanes; enables EtherCAT, Profinet, and fieldbus integration. |
| Package | 760-pin FCBGA (ABZ); 23 mm × 23 mm, 0.8-mm pitch; supports high-density routing for complex industrial PCBs. |
Pinout & Package
AM5746ABZX uses a 760-ball FCBGA (ABZ) package with 23 mm × 23 mm body size and 0.8-mm ball pitch. The package includes 247 configurable GPIOs, with dedicated balls for DDR3/DDR3L interface (EMIF1/EMIF2), PRU-ICSS, PCIe, USB3.0/2.0, SATA, and multiple serial interfaces. Non-connected balls are explicitly listed (e.g., AF7, AE4, AB26, W3, etc.) and must be left unpopulated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ddr1_dq[31:0] | DDR3 Data Bus (EMIF1) | 32-bit bidirectional data path for primary DDR3 channel; requires matched-length routing and termination per JEDEC spec. |
| ddr1_ck / ddr1_nck | DDR3 Clock Pair (EMIF1) | Differential clock input for EMIF1; drives internal DLL and must be routed as controlled-impedance differential pair. |
| pru0_r30 / pru1_r30 | PRU-ICSS General-Purpose I/O | Dedicated pins for real-time bit-banging, PWM, or protocol emulation; accessible directly from PRU firmware without CPU intervention. |
| mcasp0_axr0 / mcasp0_ahclkr | McASP Serial Audio Interface | Asynchronous serial data and clock for multichannel audio capture/playback; supports TDM, I2S, and DSP modes. |
| pcie1_clk_p / pcie1_clk_n | PCIe Reference Clock | 100 MHz differential reference clock input for PCIe SS1; must meet jitter and skew requirements per PCIe Gen2 spec. |
| usb3_p / usb3_n | SuperSpeed USB Differential Pair | 5-Gbps differential signaling pair for USB3.0 DRD operation; requires 90-Ω differential impedance and strict length matching. |
Key Features
| Feature | Design Value |
|---|---|
| Heterogeneous Compute Architecture | Dual Cortex-A15 + dual C66x DSP + dual Cortex-M4 + VPE + PRU-ICSS enables concurrent OS, algorithm, real-time, and protocol processing. |
| Cryptographic Hardware Acceleration | Fully integrated AES/SHA/3DES/TRNG engines reduce CPU overhead for secure boot, encrypted storage, and TLS offload in edge devices. |
| Dual DDR3/DDR3L Memory Interfaces | Independent EMIF1 (with ECC) and EMIF2 allow memory partitioning: safety-critical code in ECC-protected space, bulk data in high-bandwidth space. |
| Industrial Communication Subsystems | 2× PRU-ICSS + MCAN/DCAN + 10× UART + 4× McSPI enable deterministic EtherCAT slave, CANopen master, or Modbus RTU gateway implementation. |
| Scalable Video Processing | VPE supports 1080p60 decode/encode pipelines and color-space conversion; usable for machine vision pre-processing without GPU dependency. |
| Secure Boot & TEE Support | Hardware-enforced root-of-trust, OTP-programmable keys, and Arm TrustZone® isolation protect firmware integrity and sensitive data in HS variants. |
Applications
| Industrial HMI Gateway | Programmable Logic Controller (PLC) Edge Node |
|---|---|
|
Use Scenario: A DIN-rail mounted gateway consolidating Modbus RTU, EtherCAT, and OPC UA traffic between factory floor devices and cloud SCADA. IC Role / Device Role / Timing Role: AM5746ABZX serves as the central application processor running Linux, managing protocol stacks on PRU-ICSS, and handling secure TLS tunneling via cryptographic accelerators. Use Value: Dual EMIFs allow segregated memory for real-time PRU firmware (EMIF1/ECC) and application stack (EMIF2), while MCAN/DCAN and 10 UARTs eliminate external transceivers. |
Use Scenario: A compact PLC module executing ladder logic, motion control, and analog I/O conditioning in packaging machinery. IC Role / Device Role / Timing Role: AM5746ABZX hosts real-time control algorithms on C66x DSPs, I/O state management on Cortex-M4 coprocessors, and HMI rendering on Linux UI stack. Use Value: 247 GPIOs and PRU-ICSS enable direct connection to 32-channel digital I/O and 8-channel analog inputs; VPE assists in vision-guided servo triggering. |
| Smart Energy Substation Controller | Embedded Analytics Appliance |
|
Use Scenario: An IEC 61850-compliant substation controller performing GOOSE messaging, sampled value processing, and fault recording. IC Role / Device Role / Timing Role: AM5746ABZX runs IEC 61850 stack on Cortex-A15, processes SV packets in real time on C66x DSPs, and stores logs in eMMC via MMC2 interface. Use Value: Cryptographic acceleration secures GOOSE authentication; dual EMIFs support redundant memory mirroring; PCIe connects to FPGA-based time-sync module. |
Use Scenario: An edge appliance aggregating sensor data from 50+ IIoT nodes, performing FFT-based vibration analysis, and compressing results for cloud upload. IC Role / Device Role / Timing Role: AM5746ABZX executes analytics workloads across Cortex-A15 (control), C66x (signal processing), and VPE (image preprocessing), with DMA-managed data flow. Use Value: 2.5MB OCMC_RAM buffers streaming sensor data; EDMA and L3 interconnect minimize CPU stalls; SATA interface enables local SSD storage for raw datasets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar heterogeneous processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AM5748ABZX | Includes HDMI 1.4a encoder, BB2D graphics accelerator, and VOUT1/VOUT2 display outputs; lacks EVE and IVA-HD blocks present in AM5749. | Supports full-HD HMI with local display output; suitable for panel-mounted HMIs requiring native video interface. | Select AM5748ABZX when HDMI or 2D graphics acceleration is required; AM5746ABZX is preferred for headless, I/O-dense, or cost-sensitive industrial controllers. |
| AM5728ABZX | Single Cortex-A15 core, no C66x DSP, no PRU-ICSS, reduced peripheral count (e.g., 1× DCAN, 1× PCIe lane), 1GB DDR max per EMIF. | Targeted at lower-cost, lower-compute industrial gateways; lacks real-time protocol offload and high-throughput video processing. | Choose AM5728ABZX for simpler connectivity gateways; AM5746ABZX delivers higher determinism, dual-CPU redundancy, and richer industrial I/O for mission-critical control. |
Compared with AM5748ABZX and AM5728ABZX, the AM5746ABZX offers balanced performance for headless industrial control-retaining dual A15/C66x/PRU-ICSS while omitting display-specific IP-making it optimal for PLCs, protocol gateways, and analytics nodes where video output is unnecessary but real-time I/O and cryptographic security are essential.
Availability
AM5746ABZX is available at Aetrix Electronics and suitable for industrial communication, automation and control, and embedded analytics applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for AM5746ABZX includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company delivering analog and embedded processing solutions, with leadership in industrial, automotive, and communications markets since 1930.
The AM5746ABZX belongs to the Sitara™ AM57xx processor family, designed specifically for high-performance industrial applications demanding heterogeneous compute, real-time I/O, functional safety readiness, and hardware-accelerated security.
FAQ
What distinguishes AM5746ABZX from AM5749ABZX and AM5748ABZX?
The AM5746ABZX omits several multimedia-focused IP blocks present in higher-tier variants: it lacks HDMI encoder, BB2D graphics accelerator, Embedded Vision Engines (EVE), and IVA-HD video subsystem. Unlike AM5749ABZX, it also excludes the ISP and ATL modules. However, it retains dual Cortex-A15, dual C66x DSP, dual Cortex-M4, VPE, PRU-ICSS, cryptographic engines, and full peripheral set-including dual EMIFs, MCAN/DCAN, PCIe, USB3.0, and 247 GPIOs-making it optimized for headless industrial control rather than rich-media HMI.
Does AM5746ABZX support ECC memory, and on which interface?
Yes, AM5746ABZX supports ECC on its primary DDR3/DDR3L External Memory Interface (EMIF1). EMIF1 can be configured for ECC protection on data and ECC bits, covering up to 2GB of memory. EMIF2 does not support ECC. This allows system designers to allocate safety-critical firmware and real-time buffers in ECC-protected space on EMIF1 while using EMIF2 for high-bandwidth, non-critical data such as video buffers or network packet queues.
Can AM5746ABZX execute real-time industrial protocols like EtherCAT or PROFINET without external hardware?
Yes, AM5746ABZX integrates two Programmable Real-Time Unit and Industrial Communication Subsystems (PRU-ICSS), each capable of implementing hard real-time Ethernet protocols-including EtherCAT slave, PROFINET IRT slave, and Ethernet/IP adapter-entirely in firmware without external ASICs or FPGAs. The PRU-ICSS provides direct access to pins, deterministic timing, and dual 200-MHz RISC cores, enabling sub-microsecond jitter for motion control loops.
What cryptographic algorithms are hardware-accelerated in AM5746ABZX?
AM5746ABZX includes dedicated cryptographic acceleration engines supporting AES with 128/192/256-bit keys, 3DES with 56/112/168-bit keys, SHA-1, MD5, SHA2 with 224/256/384/512-bit digests, and a True Random Number Generator (TRNG). These accelerators operate independently of the CPU cores and support DMA-driven operation, enabling high-throughput secure boot, encrypted filesystems, and TLS handshake offload in edge gateways.
Is the AM5746ABZX pin-compatible with other AM574x variants in the ABZ package?
Yes, AM5746ABZX is pin-compatible with AM5748ABZX and AM5749ABZX in the 760-ball FCBGA (ABZ) package. All share identical mechanical footprint, ball map, power delivery requirements, and signal routing constraints. Functional differences arise only from disabled IP blocks (e.g., HDMI, EVE), meaning PCBs designed for AM5746ABZX can be reused for AM5748ABZX or AM5749ABZX with only software/firmware updates-no layout changes required.
AM5746ABZX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 760-LFBGA, FCBGA
- Series:
- Sitara™
- Packaging:
- Tray
- Product Status:
- Active
- Core Processor:
- ARM® Cortex®-A15
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 1.5GHz
- Co-Processors/DSP:
- ARM® Cortex®-M4, C66x
- RAM Controllers:
- DDR3, DDR3L
- Graphics Acceleration:
- Yes
- Display & Interface Controllers:
- HDMI, LCD, Video
- Ethernet:
- GbE (2)
- SATA:
- SATA 3Gbps (1)
- USB:
- USB 2.0 (2), USB 3.0 (2)
- Voltage - I/O:
- 1.35V, 1.5V, 1.8V, 3.3V
- Operating Temperature:
- 0°C ~ 90°C (TJ)
- Grade:
- -
- Qualification:
- -
- Security Features:
- ARM TZ, Boot Security, Cryptography, Secure JTAG, Secure RTC
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 760-FCBGA (23x23)
- Additional Interfaces:
- CAN, HDQ/1-Wire, I2C, McASP, MMC/SD/SDIO, QSPI, SPI, SD/SDIO, UART
AM5746ABZX FAQ
1.How can I place an order for AM5746ABZX through Aetrix?
Please submit a Request for Quotation (RFQ) for AM5746ABZX on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AM5746ABZX reliable?
The price and inventory of AM5746ABZX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AM5746ABZX is usually 5 days.
3.What payment methods are accepted for AM5746ABZX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AM5746ABZX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AM5746ABZX?
AM5746ABZX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AM5746ABZX order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AM5746ABZX?
For technical support, including AM5746ABZX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AM5746ABZX requirements.
6.How does Aetrix verify that AM5746ABZX is sourced from the original manufacturer or authorized distributors?
All AM5746ABZX products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AM5746ABZX meets industry standards.
7.What is the process for return or replacement of AM5746ABZX?
All AM5746ABZX units undergo pre-shipment inspection (PSI). If there is an issue with AM5746ABZX, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AM5746ABZX part is unused and in its original packaging.
Return procedure for AM5746ABZX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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